the vq35 coolers should be more efficient. ours only work under high load. the sandwich style cooler works all the time by circulating coolant via a heatsink. constant supply of cool oil, and the lubrication circuit isnt as complex. they are known to fail thought, then you have a chocolate milkshake in your oil pan.
......And just as they're about to catch me.....Twin......Turbos......Kick.......In!